/usr/share/freemat/help/text/fdump.mdc is in freemat-help 4.0-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 | FDUMP FDUMP Dump Information on Function
Usage
Dumps information about a function (diagnostic information only)
fdump fname
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